Last night I put together a my compter i7 2600k with Asus P8Z68 seemed everything was ok all the fans going and then I loaded on the OS and Utilities and while I was loading on Nortons it just died instantly. Two lights on the motherboard are lit, looks like reset and a red power on button, but, no fans, no case led lights, no activity at all. When this happened I pushed down on all four posts of the cpu fan and one of them clicked. I switched the PSU with a known good one and still the same thing. How can I tell if I fried my MB or CPU since I don't have another CPU to try. I'd hate to buy one or the other and find out that it was the other part that was broken. Thanks.

I would suggest taking it all apart and looking 4 any hints of problems.

Then when u put it back 2gether, make certain to engage your connections, as I've run into this a couple of times.
White screen problem I had was simply a ram issue. Removed them, re-installed and it was good 2 go, yet it had been working fine 4 days.
Turns out the person kept putting their feet on the case, eventually causing this.

I'm not sure what white screen is FF? The monitor doesn't come on, no anything but two lights on the MB. I've unplugged all the connections and resetted them. I've tried it with one stick of ram. I've tried to remove the battery everything I do seems to result in the same thing just two lights on the MB lit and no case lights no PSU activity no fans, nothing. I've already eliminated the PSU I just don't know how to tell which is bad the CPU or motherboard. If I could tell which one is bad I could go and get a new one.

I am suspecting that the motherboard is at fault here. Although CPU can be damaged but damage from overheating is not very likely as a modern CPU will switch off automatically when it reaches its max temp threshold.